:root {
            --bg-base: #070b19;
            --bg-surface: rgba(13, 20, 41, 0.85);
            --bg-card: rgba(22, 33, 67, 0.6);
            --color-primary: #00f2fe;
            --color-secondary: #ff007f;
            --color-accent: #7b2cbf;
            --text-main: #f8f9fa;
            --text-muted: #a0aec0;
            --border-glow: rgba(0, 242, 254, 0.25);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
        }

        body {
            overflow-x: hidden;
            background-image: radial-gradient(circle at 50% 0%, rgba(123, 44, 191, 0.15) 0%, transparent 50%),
                              radial-gradient(circle at 100% 40%, rgba(0, 242, 254, 0.08) 0%, transparent 40%),
                              radial-gradient(circle at 0% 80%, rgba(255, 0, 127, 0.08) 0%, transparent 40%);
            background-attachment: fixed;
            line-height: 1.6;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(7, 11, 25, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-glow);
            transition: all 0.3s ease;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            display: block;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-menu a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-menu a:hover, .nav-menu a.active {
            color: var(--color-primary);
            text-shadow: 0 0 8px var(--color-primary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: bold;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-outline {
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(0, 242, 254, 0.1);
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: #fff;
            border: none;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.6), 0 0 10px rgba(0, 242, 254, 0.4);
        }

        /* 移动端菜单按钮 */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 24px;
            cursor: pointer;
        }

        /* Section 通用样式 */
        section {
            padding: 90px 0 60px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            background: linear-gradient(135deg, #fff 30%, var(--color-primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Hero首屏 (NO IMAGES) */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 100px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .hero-glow {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 242, 254, 0.2) 0%, transparent 70%);
            transform: translate(-50%, -50%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid var(--color-secondary);
            border-radius: 20px;
            color: var(--color-secondary);
            font-size: 13px;
            font-weight: bold;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 1px;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.2);
        }

        .hero-content h1 {
            font-size: 48px;
            line-height: 1.25;
            font-weight: 900;
            background: linear-gradient(135deg, #fff 10%, var(--color-primary) 50%, var(--color-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 25px;
            text-shadow: 0 0 30px rgba(0, 242, 254, 0.1);
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
            position: relative;
            z-index: 2;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
            transition: all 0.3s ease;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-secondary);
            box-shadow: 0 12px 40px rgba(255, 0, 127, 0.2);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 5px;
            text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 平台/软件介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 26px;
            margin-bottom: 20px;
            color: var(--color-primary);
        }

        .intro-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 16px;
        }

        .intro-features {
            list-style: none;
        }

        .intro-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .intro-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--color-secondary);
            font-weight: bold;
        }

        .intro-visual {
            background: linear-gradient(135deg, rgba(123, 44, 191, 0.2) 0%, rgba(0, 242, 254, 0.1) 100%);
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            box-shadow: inset 0 0 30px rgba(0, 242, 254, 0.1);
        }

        .platform-badge-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .platform-badge {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            transition: all 0.3s;
        }

        .platform-badge:hover {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
            transform: scale(1.05);
        }

        /* 全平台AIGC服务体系 & 支持的AI平台 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-glow);
            box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 32px;
            color: var(--color-primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 流程步骤 */
        .workflow-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .workflow-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 31px;
            width: 2px;
            background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
        }

        .workflow-step {
            position: relative;
            padding-left: 80px;
            margin-bottom: 40px;
        }

        .step-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            color: var(--color-primary);
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
        }

        .workflow-step:nth-child(even) .step-num {
            border-color: var(--color-secondary);
            color: var(--color-secondary);
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.2);
        }

        .step-content {
            background: var(--bg-card);
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .step-content h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-content p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 全国服务网络 & 技术标准 */
        .network-section {
            background: rgba(13, 20, 41, 0.5);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .network-map-simulation {
            position: relative;
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            background: rgba(7, 11, 25, 0.8);
            padding: 30px;
            min-height: 300px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .map-hotspots {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-top: 20px;
        }

        .hotspot-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
        }

        .hotspot-card .city {
            font-weight: bold;
            color: var(--color-primary);
        }

        .hotspot-card .status {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 客户案例中心 (With Images) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--color-secondary);
            box-shadow: 0 10px 25px rgba(255, 0, 127, 0.15);
        }

        .case-image-wrapper {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #111b35;
        }

        .case-image-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

        .case-card:hover .case-image-wrapper img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            font-size: 11px;
            padding: 3px 8px;
            background: rgba(0, 242, 254, 0.1);
            color: var(--color-primary);
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .case-info h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 13px;
        }

        /* 对比评测 (Required details) */
        .comparison-wrapper {
            background: var(--bg-surface);
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }

        .comparison-hero-rating {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 30px;
            margin-bottom: 30px;
        }

        .rating-box {
            text-align: right;
        }

        .stars {
            color: #ffd700;
            font-size: 24px;
            margin-bottom: 5px;
        }

        .score-val {
            font-size: 48px;
            font-weight: 900;
            color: var(--color-primary);
        }

        .comparison-table-container {
            width: 100%;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .comparison-table th {
            font-weight: 700;
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-table td {
            color: var(--text-muted);
        }

        .comparison-table tr:hover td {
            color: var(--text-main);
            background: rgba(0, 242, 254, 0.02);
        }

        .highlight-col {
            color: var(--color-primary) !important;
            font-weight: bold;
        }

        /* Token比价参考 */
        .token-card {
            background: linear-gradient(135deg, rgba(7, 11, 25, 0.9) 0%, rgba(22, 33, 67, 0.9) 100%);
            border: 1px solid var(--border-glow);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 30px;
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .token-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
        }

        .token-item h4 {
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 24px;
            color: var(--color-secondary);
            font-weight: bold;
        }

        /* 培训体系 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--color-primary);
            transform: scale(1.03);
            box-shadow: 0 5px 15px rgba(0, 242, 254, 0.1);
        }

        .training-card h3 {
            font-size: 15px;
            margin-top: 10px;
            color: var(--text-main);
        }

        .training-icon {
            font-size: 28px;
            color: var(--color-primary);
        }

        /* 客户评论 (6 Cards) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 25px;
            position: relative;
        }

        .review-quote {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .review-user-info h4 {
            font-size: 15px;
            color: var(--text-main);
        }

        .review-user-info span {
            font-size: 12px;
            color: var(--color-primary);
        }

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: 15px 0;
        }

        .faq-trigger {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 10px 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-trigger::after {
            content: '+';
            font-size: 22px;
            color: var(--color-primary);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-trigger::after {
            content: '-';
            transform: rotate(90deg);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 14px;
            padding-right: 30px;
        }

        /* 排查与百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .tool-box {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 30px;
        }

        .tool-box h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--color-primary);
        }

        .tool-list {
            list-style: none;
        }

        .tool-list li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
            font-size: 14px;
        }

        /* 资讯与外链 */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 12px;
            transition: all 0.3s;
        }

        .article-item:hover {
            border-color: var(--color-primary);
            background: rgba(0, 242, 254, 0.02);
        }

        .article-item a {
            color: var(--text-main);
            text-decoration: none;
            font-size: 16px;
            font-weight: bold;
            display: block;
            margin-bottom: 8px;
        }

        .article-item a:hover {
            color: var(--color-primary);
        }

        .article-item span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 联系与表单 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .form-wrapper {
            background: var(--bg-surface);
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            padding: 40px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .form-control {
            width: 100%;
            background: rgba(7, 11, 25, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-main);
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: all 0.3s;
        }

        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
        }

        .contact-info-panel {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .qrcode-box {
            text-align: center;
            margin-top: 20px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 12px;
            border: 1px dashed rgba(255, 255, 255, 0.1);
        }

        .qrcode-box img {
            max-width: 130px;
            margin-bottom: 10px;
            border-radius: 4px;
        }

        /* 浮动组件与页脚 */
        footer {
            background: #03060f;
            border-top: 1px solid var(--border-glow);
            padding: 50px 0 30px 0;
            color: var(--text-muted);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 35px;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: var(--text-main);
            margin-bottom: 15px;
            font-size: 16px;
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-links ul li a:hover {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            text-align: center;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .friendship-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 12px;
        }

        .friendship-links a:hover {
            color: var(--color-secondary);
        }

        /* 悬浮客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--color-accent);
            border: 1px solid var(--color-primary);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            text-decoration: none;
            font-size: 18px;
            transition: all 0.3s;
            cursor: pointer;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--color-secondary);
        }

        .float-qr-pop {
            display: none;
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-glow);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
            width: 150px;
            text-align: center;
        }

        .float-btn:hover .float-qr-pop {
            display: block;
        }

        .float-qr-pop img {
            width: 100%;
            border-radius: 4px;
        }

        .float-qr-pop p {
            font-size: 12px;
            margin-top: 5px;
            color: var(--text-main);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .service-grid, .case-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-base);
                border-bottom: 1px solid var(--border-glow);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.show {
                display: flex;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .intro-grid, .network-grid, .troubleshoot-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .service-grid, .case-grid, .reviews-grid, .stats-grid, .training-grid, .articles-list {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }